Optical glass
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United States of America Patent
Stats
-
May 24, 2016
Grant Date -
Sep 10, 2015
app pub date -
Oct 17, 2013
filing date -
Oct 19, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides a kind of high-precision molding optical glass, comprising 0.1-10 wt % of SiO2, 9-20 wt % of B2O3, 20-35 wt % of La2O3, 1-8 wt % of ZrO2, 5-20 wt % of ZnO, 1-10 wt % of Ta2O5, 5-15 wt % of Gd2O3, 0-2 wt % of TiO2, 1-10 wt % of Y2O3, 1-12 wt % of WO3, 0-3 wt % of Li2O and 0-1 wt % of Sb2O3. The optical glass provided in the invention features density less than 5.0 g/cm3, refractive index between 1.80 and 1.85, Abbe number between 40 and 45, transition temperature lower than 600° C., wavelength λ80 corresponding to the transmissivity of 80% below 415 nm, and upper limit of devitrification temperature below 1110° C., and is applicable to high-precision molding.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- C03C Class
- 680 Applications Filed
- 602 Patents Issued To-Date
- 88.53 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C03C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 24, 2027 |
